How far, how fast, how big... how does radar get all that information about distant objects? In this BrainPOP UK movie Tim and Moby will show you how, by transmitting and collecting electromagnetic waves, radar can do just that. In this educational, animated movie you’ll be introduced to the four basic parts of any radar system – transmitter, antenna, receiver and display screen; and you’ll learn how satellites using radar can make exact maps of the surface of the Earth, as well as that of other planets and moons. You’ll even discover what the word ‘radar’ actually stands for. Blip… blip…blip..!